VST testing

timbers

Recruit
Joined
Aug 24, 2011
Messages
3
How to I test my VST to see if the pump is working? Its on a 2000 mercury 200hp efi.
Thanks Ian
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,616
Re: VST testing

Remove cowling and turn key on, pump should run up to 30 seconds. If it does not come on check for voltage at the + terminal on pump as this is hot at all times. If you have 12v+ at terminal remove - terminal on pump and apply a jumper from terminal to ground and pump should run. If it does the driver board in ECU is bad.
 

timbers

Recruit
Joined
Aug 24, 2011
Messages
3
Re: VST testing

Thanks for the help, pumps working, will send ecu in for repair!
 
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